Your GM 2500HD/3500HD's suspension can be completely upgraded with a 5-6" lift kit to gain a towering stance and increased capability on the trail. Our selection of lift kits includes components such as shocks, springs, control arms, sway bar links, bump stops, radius arms and more! With all the added lift height from the lift kit, you can fit massive wheels and tires on your truck with ease. Take your GM's capability to the next level with our selection of 5-6" lifts. Pair your new 5-6" lift with our vast selection of Wheels & Tires!GM Duramax Fitments: 2006, 2007 GM 6.6L Duramax.Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali.Some exceptions apply, please see individual product pages for specific fitments.